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对河北（Ａ夹）、湖南（Ｂ夹）、山东（Ｃ夹）３种银夹采用多中心前瞻性研究，于１９９０年９月～１９９２年１２月在山西、河南、河北、湖南及山东５省共３９３２人进行了为期一年的观察，随访率９９．９５％。结果表明，术后一年绝育有效率Ｐｅａｒｌ指数与寿命表法两种方法，Ａ夹分别为９８．７４％、９８．７５％；８夹为９９．５９％、９９．５２％；Ｃ夹为９９．２０％、９９．１３％。经χ２检验差异无显著性。副反应：术后一年自述症状以腰痛多见，月经量、月经周期改变次之，三者发生率分别为４．４５％、２．８０％及２．１１％。盆腔检查所见：宫体炎、附件炎仅占０．６６％，未发现其他器质性病变；并对影响效果及副反应的因素进行了分析。研究结果表明，输卵管银夹绝育术效率高，副反应少，简便易行，有普遍推广价值。
A multi-center prospective study of three silver clips in Hebei (A clip), Hunan (B clip) and Shandong (C clip) was conducted in Shanxi, Henan, Hebei, Hunan and Shandong provinces from September 1990 to December 1992 A total of 3932 people in the province conducted a one-year observation with a follow-up rate of 99.95%. The results showed that the effective index of pearl sterilization one year after surgery and the two methods of life table method, A clip were 98.74%, 98.75%; 8 clip was 99.59%, 99.52%; C clip is 99.20%, 99.13%. The χ2 test showed no significant difference. Side effects: Postoperative symptoms were more common with back pain, menstrual flow, followed by changes in menstrual cycle, the three were 4.45%, 2.80% and 2.11% respectively. Pelvic examination showed: Palace inflammation, annex inflammation accounted for only 0.66%, no other organic lesions; and the impact of the effects and side effects of the factors were analyzed. The results show that tubal silver clipper sterilization high efficiency, fewer side effects, simple and easy, there is a universal value.